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Charles Daniel Johnson
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Porter, TX, US
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Patents Grants
last 30 patents
Information
Patent Grant
Fixed cutter completions bit
Patent number
10,900,290
Issue date
Jan 26, 2021
VAREL INTERNATIONAL IND., LLC.
Johnathan Walter Howard
E21 - EARTH DRILLING MINING
Information
Patent Grant
Methods to repair worn or eroded PDC cutters, cutters so repaired,...
Patent number
9,708,858
Issue date
Jul 18, 2017
Varel International Ind., L.P.
William W. King
E21 - EARTH DRILLING MINING
Information
Patent Grant
Method for applying hardfacing to a matrix substrate of a drill bit
Patent number
9,481,057
Issue date
Nov 1, 2016
Varel International, Ind., L.P.
Charles Daniel Johnson
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Use of tungsten carbide tube rod to hard-face PDC matrix
Patent number
9,435,158
Issue date
Sep 6, 2016
Varel International Ind., L.P.
Charles Daniel Johnson
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Methods to repair worn or eroded PDC cutters, cutters so repaired,...
Patent number
9,375,827
Issue date
Jun 28, 2016
Varel International Ind., L.P.
Marvin Windsor Amundsen
B24 - GRINDING POLISHING
Information
Patent Grant
Method for repairing or reinforcing cutter pockets of a drill bit
Patent number
9,289,864
Issue date
Mar 22, 2016
Varel International, Ind., L.P.
Charles Daniel Johnson
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Patents Applications
last 30 patents
Information
Patent Application
FIXED CUTTER COMPLETIONS BIT
Publication number
20200003014
Publication date
Jan 2, 2020
VAREL INTERNATIONAL IND., L.L.C.
JOHNATHAN WALTER HOWARD
E21 - EARTH DRILLING MINING
Information
Patent Application
SHORT MATRIX DRILL BITS AND METHODOLOGIES FOR MANUFACTURING SHORT M...
Publication number
20150259985
Publication date
Sep 17, 2015
VAREL INTERNATIONAL IND., L.P.
Gary Michael Thigpen
E21 - EARTH DRILLING MINING
Information
Patent Application
MANUFACTURE OF LOW COST BITS BY INFILTRATION OF METAL POWDERS
Publication number
20150240566
Publication date
Aug 27, 2015
VAREL INTERNATIONAL IND., L.P.
Marvin Windsor Amundsen
E21 - EARTH DRILLING MINING
Information
Patent Application
USE OF TUNGSTEN CARBIDE TUBE ROD TO HARD-FACE PDC MATRIX
Publication number
20150211305
Publication date
Jul 30, 2015
VAREL INTERNATIONAL IND., L.P.
Charles Daniel Johnson
E21 - EARTH DRILLING MINING
Information
Patent Application
METHODOLOGIES FOR MANUFACTURING SHORT MATRIX BITS
Publication number
20140291033
Publication date
Oct 2, 2014
VAREL INTERNATIONAL IND., L.P.
Marvin Windsor Amundsen
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Application
Methods To Repair Worn Or Eroded PDC Cutters, Cutters So Repaired,...
Publication number
20140158436
Publication date
Jun 12, 2014
VAREL INTERNATIONAL IND., L.P.
William W. King
E21 - EARTH DRILLING MINING
Information
Patent Application
METHOD FOR APPLYING HARDFACING TO A MATRIX SUBSTRATE OF A DRILL BIT
Publication number
20140102011
Publication date
Apr 17, 2014
VAREL INTERNATIONAL IND., L.P.
Charles Daniel Johnson
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Application
Methods To Repair Worn Or Eroded PDC Cutters, Cutters So Repaired,...
Publication number
20130341102
Publication date
Dec 26, 2013
VAREL INTERNATIONAL IND., L.P.
William W. King
E21 - EARTH DRILLING MINING
Information
Patent Application
METHOD FOR REPAIRING OR REINFORCING CUTTER POCKETS OF A DRILL BIT
Publication number
20130206483
Publication date
Aug 15, 2013
VAREL INTERNATIONAL IND., L.P.
Charles Daniel Johnson
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Application
USE OF TUNGSTEN CARBIDE TUBE ROD TO HARD-FACE PDC MATRIX
Publication number
20130092453
Publication date
Apr 18, 2013
Charles Daniel Johnson
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...